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2015 FORD F-150
3.5L V6 EcoBoost•RWD•AUTOMATIC•gas•turbo
14 active safety recalls on this vehicle — view recalls
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Repairs418Labor995Torque7006Fluid18DTC3796Battery2Maintenance0Recalls14
P0277moderate severityPowertrain

Cylinder 7 Injector Circuit High

on 2015 Ford F-150 3.5L V6 EcoBoost · RWD

What this code means

The PCM detected a high voltage condition in the cylinder 7 injector circuit. This typically indicates an electrical fault in the injector or its wiring.

Symptoms

  • Misfire on cylinder 7
  • Rough running
  • Check engine light on

Common causes

  • Open injector circuit wiring
  • Faulty fuel injector
  • Corroded or loose connector
  • PCM driver fault

Diagnostic steps

  1. Retrieve codes and freeze frame data
  2. Inspect cylinder 7 injector connector and wiring
  3. Measure injector resistance
  4. Replace injector or repair circuit as needed
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Other Powertrain codes on this vehicle

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